JP2018072952A - Manipulation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manipulation device capable of minimizing false determination of manipulation caused by vibration of a vehicle.SOLUTION: A manipulation device 1 roughly comprises: a load detection unit 12 configured to detect a load F applied on a manipulation surface 100 by a detection target; and a control unit 14 provided with a first load threshold value Th, which is a negative value when a direction normal to the manipulation surface 100 is defined as negative, and configured to determine a detected load F as a load caused by vibration of a vehicle 8 when the load F detected by the load detection unit 12 is the first load threshold value Thor less.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an operating device.

  As a conventional technique, a plurality of operation units provided with a strain detection element that outputs a detection signal corresponding to a load generated by a user operation, and the strain detection element are provided based on a detection signal from the strain detection element. Based on detection means for detecting an operation to the operation unit and detection signals from the strain detection elements provided in the plurality of operation units, it is determined whether or not a load has occurred in these operation units at the same time. There is known an in-vehicle device provided with invalidating means for invalidating detection signals from these strain detection elements at a time when a load is generated (for example, see Patent Document 1). .

  This in-vehicle device can prevent erroneous detection due to vehicle vibration.

JP 2013-181777 A

  However, the conventional vehicle-mounted device is effective for a plurality of operation units, and cannot be applied when there is one operation unit.

  Accordingly, an object of the present invention is to provide an operating device that can suppress erroneous determination of an operation due to vehicle vibration.

  One aspect of the present invention includes a load detection unit that is mounted on a vehicle and detects a load applied to the operation surface by a detection target, and a first load threshold that is negative with the normal direction of the operation surface being negative. And a determination unit that determines that the detected load is a load caused by vibration of the vehicle when the load detected by the load detection unit is equal to or less than the first load threshold value. An operating device is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the misjudgment of operation resulting from the vibration of a vehicle can be suppressed.

FIG. 1A is a schematic diagram inside a vehicle on which an example of an operation device according to an embodiment is mounted, and FIG. 1B is a schematic diagram illustrating an example of an operation surface of a touch pad. 1 (c) is a schematic diagram for explaining an example of a load applied to the operation surface. FIG. 2A is a block diagram illustrating an example of an operating device according to the embodiment, and FIGS. 2B and 2C are examples of graphs of detected load and time. FIG. 3 is a flowchart illustrating an example of the operation of the controller device according to the embodiment.

(Summary of embodiment)
An operating device according to an embodiment is mounted on a vehicle and detects a load applied to an operation surface by a detection target, and a first load that takes a negative value when the normal direction of the operation surface is negative. A determination unit that has a threshold and determines that the detected load is a load caused by the vibration of the vehicle when the load detected by the load detection unit is equal to or less than the first load threshold; Is generally configured.

  In this operation device, when a load in the normal direction of the operation surface that is difficult to be generated by an operation on the operation surface is detected, if the load in the negative direction is large enough to be equal to or less than the first load threshold value, the operation device is caused by vibration of the vehicle. Therefore, compared to the case where this configuration is not adopted, it is possible to separate the load caused by the operation and the load caused by the vibration of the vehicle, and suppress an erroneous determination of the operation caused by the vibration of the vehicle.

[Embodiment]
(Overview of operation device 1)
FIG. 1A is a schematic diagram inside a vehicle on which an example of an operation device according to an embodiment is mounted, and FIG. 1B is a schematic diagram illustrating an example of an operation surface of a touch pad. 1 (c) is a schematic diagram for explaining an example of a load applied to the operation surface. FIG. 2A is a block diagram illustrating an example of an operating device according to the embodiment, and FIGS. 2B and 2C are examples of graphs of detected load and time. 2B and 2C, the vertical axis is the detected load F, and the horizontal axis is the time t. 2B and 2C, the load F in the positive direction of the vertical axis is the load F in the normal direction of the back surface 101 of the touch pad 10 shown in FIG. The load F in the direction is the load F in the normal direction of the operation surface 100.

  Note that, in each drawing according to the embodiment described below, the ratio between figures may be different from the actual ratio. In FIG. 2A, the main information flow is indicated by arrows. Furthermore, “A to B” indicating a numerical range is used in the meaning of A or more and B or less.

  The operating device 1 is configured so that an electronic device mounted on the vehicle 8 can be operated remotely. For example, as shown in FIG. 1A, the operation device 1 is arranged such that the operation surface 100 is exposed on a floor console 80 positioned between a driver seat and a passenger seat of the vehicle 8.

  The operation device 1 instructs, for example, the movement of the cursor displayed on the display device 85 functioning as a display unit of the electronic device, the selection and determination of icons, the scrolling of the displayed image, and the like according to the operation performed on the operation surface 100. be able to. The display device 85 is disposed on the instrument panel 81 of the vehicle 8.

  The operating device 1 is configured to suppress erroneous detection of a double tap due to vibration of the vehicle 8. This double tap is an operation of tapping the operation surface 100 twice, and corresponds to, for example, a double click of a mouse. The double tap instructs to determine the selected icon or the like.

Specifically, as illustrated in FIGS. 1A to 2B, the controller device 1 includes a load detection unit 12 that detects a load F applied to the operation surface 100 by a detection target, and the operation surface 100. ₁ has a _first load threshold Th ₁ that is a negative value with the normal direction being negative, and the load F detected by the load detector 12 is equal to or less than the first load threshold Th ₁ . The control part 14 as a determination part which determines with the said detected load F being the load produced by the vibration of the vehicle 8 is comprised roughly. The operation device 1 also includes a touch pad 10 that detects the approach and contact of the detection target with respect to the operation surface 100.

  The detection target of the present embodiment is the operator's finger (operation finger), but is not limited to this, and a dedicated pen (touch pen) in which the pen tip is formed of a conductive member may be used.

For example, as shown in FIG. 1C, the load F is a force in the direction in which the operation finger 9 pushes the operation surface 100, that is, the direction opposite to the normal direction of the operation surface 100. The load F in the normal direction of the back surface 101 on the opposite side is positive, and the load F in the normal direction of the operation surface 100 is negative. Thus the first load threshold value Th ₁ is a threshold value for negative load does not occur in a double-tap.

Further, for example, as illustrated in FIG. 2B, the controller device 1 includes a second load threshold value Th ₂ that is a positive value and a third load that is smaller than the second load threshold value Th _2. After the first load F ₁ having the threshold Th ₃ and detected by the load detector 12 becomes equal to or greater than the second load threshold Th ₂ (time t ₂ ), the first time T ₁ When the condition to be equal to or less than the third load threshold Th ₃ (time t ₃ ) is satisfied within (time t ₂ to time t ₅ ), and the subsequently detected second load F ₂ satisfies the condition It is determined that the operation surface 100 has been double-tapped.

Further, for example, as shown in FIG. 2 (c), the control unit 14 determines that the detected load F (third load F ₃ ) is equal to or lower than the first load threshold Th ₁ (time t ₂₃ ). The first load threshold Th ₁ or more (time t ₂₅ ) and the second load threshold Th ₂ or more (time t ₂₆ ) within the second time T ₂ (time t ₂₅ to time t ₂₇ ). In such a case, the detected load F is determined as a load caused by the vibration of the vehicle 8 so that the double tap determination is not performed or is discarded when it is determined. In FIG. 2C, this condition also applies to the third load F ₃ after the time t ₂₇ , and the second load threshold Th ₂ , the third load threshold Th _3, and the first load F ₃ It shows an example that does not perform the determination of the double tap due to time T _1.

The first load threshold Th ₁ to the third load threshold Th ₃ are stored in the control unit 14 as threshold information 140.

(Configuration of touchpad 10)
The touch pad 10 is, for example, a touch sensor that detects a position on the operation surface 100 where a part of the operator's body or a dedicated pen contacts the operation surface 100. As the touch pad 10, for example, a touch pad of a resistance film method, an infrared method, a SAW (Surface Acoustic Wave) method, a capacitance method, or the like can be used. The touch pad 10 of the present embodiment is a capacitive touch pad.

  In the touch pad 10, for example, a plurality of drive electrodes and a plurality of detection electrodes are arranged below the operation surface 100 while intersecting with each other while maintaining insulation. The touch pad 10 scans all combinations of the drive electrodes and the detection electrodes and detects the capacitance for each combination. Then, the touch pad 10 calculates coordinates at which the detection target is detected by a method such as a weighted average based on a capacitance equal to or greater than a predetermined threshold.

For the touch pad 10, for example, an XY coordinate system having the origin at the upper left of the paper surface of FIG. The operation surface 100 has an X axis in the horizontal direction and a Y axis in the vertical direction. Touch pad 10, as described above, it calculates the position where the target is detected as coordinates in the XY coordinate system, and outputs the cyclically controller 14 as detection information S _1. Then, the control unit 14 outputs to the electronic device connected generated by the operation information S ₃ based on the detected information S _1. The electronic device performs such movement of the cursor on the basis of the operation information S _3.

Note the controller 14 as a modification, together with the operating finger 9 by the touch pad 10 is detected, is configured to output the operation information S ₃ when the condition in which the load detection unit 12 detects the load F is satisfied May be.

(Configuration of load detection unit 12)
The load detection unit 12 is disposed, for example, in the center of the back surface 101 of the touch pad 10. The load detection unit 12 is configured using, for example, a strain gauge. This strain gauge has, for example, a shape in which a metal film resistor laid out in a zigzag shape is attached to a thin insulator. The strain gauge detects the strain amount based on the electrical resistance which changes by the deformation due to the load, and outputs the strain amount control unit 14 as the load information S ₂ is converted to the load. The converted load F is, for example, a digital value.

(Configuration of control unit 14)
The control unit 14 includes, for example, a CPU (Central Processing Unit) that performs operations and processes on acquired data according to a stored program, a RAM (Random Access Memory) that is a semiconductor memory, a ROM (Read Only Memory), and the like. Microcomputer. In this ROM, for example, a program for operating the control unit 14 and threshold information 140 are stored. For example, the RAM is used as a storage area for temporarily storing calculation results and the like. Further, the control unit 14 has means for generating a clock signal therein, and is configured to perform an operation based on the clock signal and to measure an elapsed time described later.

The threshold information 140 is information relating to the _first load threshold Th ₁ to the third load threshold Th ₃ , the first time T ₁ and the second time T ₂ .

The first load threshold value Th ₁ is a threshold value for the load for determining the vibration of the vehicle 8. The first load threshold Th ₁ is a threshold for a load in the normal direction of the operation surface 100, that is, in the negative direction. When the detected load F becomes equal to or higher than the first load threshold Th ₁ after the detected load F becomes equal to or lower than the first load threshold Th ₁ , the control unit 14 sets the second load threshold Th ₂ or higher. time until, or until the second time T ₂ to measure the time.

The second load threshold Th ₂ and the third load threshold Th ₃ are thresholds for the load for determining a double tap. The second load threshold Th ₂ and the third load threshold Th ₃ are thresholds for the load in the normal direction of the back surface 101, that is, in the positive direction. When the detected load F becomes equal to or greater than the second load threshold Th ₂ , the control unit 14 determines the time until the load F becomes equal to or less than the third load threshold Th ₃ , or the first time T _1. Start measuring time until.

First time T ₁ is the threshold for the time for determining the double tap. Control unit 14, after the detected load F becomes the second load threshold value Th ₂ or more, the time until the third load threshold Th ₃ below at a first time T ₁ within Yes, when a load F that satisfies this condition is detected twice, it is determined that a double tap has been made. Thus the control unit 14 determines that the first time T ₁ is to elapse before the third load threshold Th ₃ below, double-tap is not performed. The first time _{T 1,} as an example, a 200 ms.

For example, as an additional condition, the control unit 14 determines that the time from the _first tap start time (time t ₁ ) to the second tap start time (time t ₆ ) is within the third time T ₃ . In some cases, it is determined that a double tap has been made. This third time T ₃ is included in the threshold information 140.

Second time T ₂ are, the threshold with respect to time for determining the vibration of the vehicle 8. After the detected load F becomes equal to or less than the first load threshold Th ₁ (time t ₂₃ ), the control unit 14 determines that the detected load F becomes equal to or greater than the first load threshold Th ₁ (time t ₂₅ ). The time until the second load threshold value Th ₂ or more (time t ₂₆ ) is measured. If this time is equal to or less than the second time T ₂ (time t ₂₅ to time t ₂₇ ), the vibration of the vehicle 8 is measured. It is determined that

That control unit 14, if the time is longer than T ₂ the second time, it is determined double tap.

Second time T ₂ are, defined by the frequency of the vibration of the vehicle 8. Specifically, the second time _{T 2} are, defined as 1 / 4-1 / 2 of the frequency. Within this range, it is possible to second taps are determined double tap a second time T within ₂ to suppress erroneous determination is determined. Second time _{T 2} of the present embodiment, as an example, are 50～100Ms.

Here, an example of determination of a double tap will be described with reference to FIG. Control unit 14, for example, as shown in FIG. 2 (b), the first load _{F 1} is detected at time _{t 1,} based on the load threshold Th ₂ load information _{S 2} and second first load _{F 1} monitors whether the second load threshold value Th ₂ or more. Control unit 14, first load F ₁ starts measuring the second load threshold value Th ₂ or more when it comes time at time t _2.

Next, when the first load F ₁ becomes equal to or less than the third load threshold value Th _{3 at} time t ₃ , the control unit 14 stops measuring time and determines the elapsed time from time t ₂ to time t _3. The first time T ₁ (time t ₂ to time t ₅ ) is compared. Control unit 14 determines that the elapsed time is equal to a first time T ₁ within the first load F ₁ is the first tap of the double tap. Here, the control unit 14 determines that it is the first tap.

Next, the control unit 14, when the first detection of the load F ₁ is the second load F ₂ is detected at time t ₆ of time t ₄ after the ends, as in the case of the first load F ₁ monitors whether the second load _{F 2} based and load information _{S 2} to the second load threshold Th ₂ is the second load threshold value Th ₂ or more. Control unit 14, the second load F ₂ at time t ₇ starts measuring the second load threshold value Th ₂ or more when it comes time.

Next, when the second load F ₂ becomes equal to or less than the third load threshold value Th _{3 at} time t ₈ , the control unit 14 stops measuring time and determines the elapsed time from time t ₇ to time t _8. The first time T ₁ (time t ₇ to time t ₁₀ ) is compared. Control unit 14, if the elapsed time is the first time T ₁ within the second load F ₂ is determined to be a second tap of a double tap, a first load F ₁ and the second It determines an operation that caused the load F ₂ is a double-tap.

Incidentally, as described above, the control unit 14, when the interval between the first detection and the second load F ₂ of the load F ₁ detection is longer than the third time T _3, a double-tap even meet the conditions It shall not be determined that The third time _{T 3} is, for example, a 1s.

An example of the determination of the vibration of the vehicle 8 will be described with reference to FIG. Control unit 14, for example, as shown in FIG. 2 (c), the third load _{F 3} is detected at time _{t 20,} based on the load threshold Th ₂ load information _{S 2} and second third load _{F 3} monitors whether a second load threshold value Th ₂ or more. Control unit 14, a third load _{F 3} starts measuring the second load threshold value Th ₂ or more when it comes time at time _{t 21.}

Next, when the third load F ₃ becomes equal to or less than the third load threshold value Th _{3 at} time t ₂₂ , the control unit 14 stops measuring time and determines the elapsed time from time t ₂₁ to time t _22. The first time T ₁ (time t ₂₁ to time t ₂₃ ) is compared. Control unit 14 determines that the elapsed time is equal to a first time T ₁ within the third load F ₃ is the first tap of the double tap. Here, the control unit 14 determines that it is the first tap.

Next, when the detected third load F ₃ becomes equal to or less than the first load threshold value Th _{1 at} time t ₂₃ and then becomes equal to or more than the first load threshold value Th _{1 at} time t ₂₅ . Start measuring time.

Next, when the third load F ₃ becomes equal to or greater than the second load threshold Th _{2 at} time t ₂₆ , the control unit 14 determines the elapsed time from time t ₂₅ to time t ₂₆ and the second time T ₂ ( Time t ₂₅ to time t ₂₇ ) are compared. Control unit 14, when the elapsed time is within T ₂ second time, not to perform determination of the double tap as detects the load by the vibration of the vehicle 8, or determining the way discarding the results so far To do.

  For example, when the control unit 14 temporarily stores the detected load F and determines the double tap after the load F for a certain time is obtained, this determination is not performed. This means that it is determined whether or not the vibration of the vehicle 8 is detected before, and when the vibration of the vehicle 8 is detected, the double tap determination is not performed.

Further, discarding the result up to that point in the middle of the determination means that, for example, the control unit 14 performs a double tap determination using the _second load threshold value Th ₂ and the vibration of the vehicle 8 is detected in the middle. When the determination is made, it means that the result of the first tap or the like determined so far is discarded and a double tap is determined for the load F detected next.

  An example of the operation of the controller device 1 according to the present embodiment will be described below with reference to the flowchart of FIG. Here, a case will be described in which when the detected load F is determined to be a load due to the vibration of the vehicle 8, the double tap determination is terminated.

(Operation)
Control unit 14 of the operation device 1, when the power supply of the vehicle 8 is turned on, and acquires the load information _{S 2} from the load detection unit 12 (Step1). Control unit 14 time-sequentially storing the detected load F based on the load information S ₂ acquired.

Next, the control unit 14 compares the load F with the first load threshold Th ₁ . Control unit 14, when the load F is first greater than the load threshold Th ₁ (Step2: No), comparing the second and the load threshold Th _2. When the load F is equal to or greater than the second load threshold Th ₂ (Step 3: Yes), the control unit 14 measures an elapsed time until the load F becomes equal to or less than the third load threshold Th _3. (Step 4).

Next, the control unit 14, when the elapsed time measured is within _{T 1} first time (Step5: Yes), determines that the tap was detected. Subsequently, the control unit 14, if the determination of the tap was determined a second time in the tap (Step6: Yes), determines that the double tap has been made (Step7), the operation target of the operation information _{S 3} indicating a double-tap Output to other electronic devices.

Here, the control unit 14 in step 2, when the load F reaches the first load threshold Th ₁ or less (Step2: Yes), the load F becomes the first load threshold value Th ₁ or more the measurement of the elapsed time until the second load threshold value Th ₂ or performed (Step8). Control unit 14, when the elapsed time is the second time _{T 2} or less (Step9: Yes), the detected load F is determined to be a load caused by vibration of the vehicle 8 (Step10), the double tap The judgment ends. Control unit 14 in step 9 is also a case where the elapsed time is longer than the second time _{T 2} (Step9: No), for performing the determination of double-tap, and the process proceeds to step 3.

In step 3, if the load F is smaller than the second load threshold Th ₂ (Step 3: No), the process proceeds to Step 2.

The control unit 14 further step 5, when the elapsed time is longer than _{T 1} the first time (Step5: No), judges that no tap (Step11).

  Furthermore, in step 6, when the determined tap is the first tap (Step 6: No), the control unit 14 advances the process to step 2 in order to determine the second tap.

(Effect of embodiment)
The operation device 1 according to the present embodiment can suppress erroneous determination of an operation due to vehicle vibration. Specifically, when the load F in the normal direction of the operation surface 100 that is unlikely to be generated by an operation on the operation surface 100 is detected, the controller device 1 uses the negative load F as the first load threshold Th. ₁ or less, and when the elapsed time from when the load F becomes equal to or greater than the first load threshold Th ₁ until it becomes equal to or greater than the second load threshold Th ₂ is within the second time T ₂ It is determined that F is caused by vehicle vibration. Therefore, the operating device 1 can separate the load caused by the operation and the load caused by the vibration of the vehicle, and suppress erroneous determination of the operation caused by the vibration of the vehicle, as compared with the case where this configuration is not adopted.

  Since the operation device 1 can accurately detect contact of the operation finger with the operation surface 100 even when the vehicle is running, the operability is improved by suppressing erroneous double tap determination that is not intended by the operator. To do.

  For example, as shown in FIG. 2B and FIG. 2C, the controller device 1 satisfies the above-described conditions even if the load waveform due to vibration caused by running and the frequency of the load waveform caused by a double tap are close to each other. By imposing, it can be determined whether it is due to vibration of the vehicle or due to a double tap. Moreover, since the operating device 1 can determine the load resulting from the vibration of the vehicle, the detection accuracy of the operation combining the touch pad 10 and the load detection unit 12 is improved, and the operability is further improved.

In another embodiment, when the load F detected by the load detection unit 12 is equal to or less than the first load threshold Th ₁ , the controller device 1 generates the detected load F due to vehicle vibration. You may comprise so that it may determine with it being a load.

In order to increase the accuracy of the determination, the controller device 1 further determines that the detected load F is equal to or less than the first load threshold value Th ₁ and further exceeds the first load threshold value Th _{1 for a} second time. If a second load threshold value Th ₂ or more within T _2, does not perform the determination of the double-tap the detected load F as a load due to vibration of the vehicle, or determines the way in discarding the results so far It may be configured to.

Moreover, although the operating device 1 was mounted in the vehicle 8 as other embodiment, it is not limited to this, You may arrange | position in the place where a vibration generate | occur | produces. For example, the controller device 1 can determine whether or not the detected load is a load caused by vibration by setting the _second time T2 or the like according to the frequency of the vibration.

  The operation device 1 according to the above-described embodiment and modification is partially a program executed by a computer, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or the like depending on the application. It may be realized.

  As mentioned above, although some embodiment and modification of this invention were demonstrated, these embodiment and modification are only examples, and do not limit the invention based on a claim. These novel embodiments and modifications can be implemented in various other forms, and various omissions, replacements, changes, and the like can be made without departing from the scope of the present invention. In addition, not all combinations of features described in these embodiments and modifications are necessarily essential to the means for solving the problems of the invention. Further, these embodiments and modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Operation apparatus, 8 ... Vehicle, 9 ... Operation finger, 10 ... Touch pad, 12 ... Load detection part, 14 ... Control part, 80 ... Floor console, 81 ... Instrument panel, 85 ... Display apparatus, 100 ... Operation surface 101: Back surface, 140: Threshold information

Claims (4)

A load detector that is mounted on a vehicle and detects a load applied to the operation surface by a detection target;
A first load threshold value having a negative value when the normal direction of the operation surface is negative, and the load detected by the load detection unit is equal to or less than the first load threshold value, A determination unit that determines that the detected load is a load generated by vibration of the vehicle;
The operating device with. The determination unit has a second load threshold value that is a positive value, and a third load threshold value that is smaller than the second load threshold value, and is detected by the load detection unit. After the load of 1 becomes equal to or higher than the second load threshold, the condition that the load becomes equal to or lower than the third load threshold within the first time is satisfied, and the second load detected subsequently is If the condition is satisfied, it is determined that a double tap has been made on the operation surface.
The operating device according to claim 1. The determination unit determines that the detected load is less than or equal to the first load threshold, further exceeds the first load threshold, and is greater than or equal to the second load threshold within a second time. If it becomes, do not perform the double tap determination as the load due to the vibration of the vehicle, or discard the previous results in the middle of the determination,
The operating device according to claim 1 or 2. The second time is predetermined based on a frequency of vibration of the vehicle.
The operating device according to claim 3.

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